Thanks for your comments on the images... always appreciated!
Chances are that I'll not be attempting BIF with the Nikon! I tried a couple of times with the SX40, and decided that the camera's "strong suit" was its ability to get great perched shots at pretty good distances. That would be my primary goal with the P900. Knowing me though, I'd try it with the P900 anyway
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One thing though that I have not seen was a lens hood for the lens. Granted wide shots would suffer from vignetting, but having even a rubber one to put over the front to block extraneous light from hitting the front element for long tele shots would be a useful accessory, since it appears that the front element is pretty close to the end...
Chris